kern_proc.c revision 163709
1/*- 2 * Copyright (c) 1982, 1986, 1989, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)kern_proc.c 8.7 (Berkeley) 2/14/95 30 */ 31 32#include <sys/cdefs.h> 33__FBSDID("$FreeBSD: head/sys/kern/kern_proc.c 163709 2006-10-26 21:42:22Z jb $"); 34 35#include "opt_ktrace.h" 36#include "opt_kstack_pages.h" 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/kernel.h> 41#include <sys/lock.h> 42#include <sys/malloc.h> 43#include <sys/mutex.h> 44#include <sys/proc.h> 45#include <sys/refcount.h> 46#include <sys/sysent.h> 47#include <sys/sched.h> 48#include <sys/smp.h> 49#include <sys/sysctl.h> 50#include <sys/filedesc.h> 51#include <sys/tty.h> 52#include <sys/signalvar.h> 53#include <sys/sx.h> 54#include <sys/user.h> 55#include <sys/jail.h> 56#include <sys/vnode.h> 57#ifdef KTRACE 58#include <sys/uio.h> 59#include <sys/ktrace.h> 60#endif 61 62#include <vm/vm.h> 63#include <vm/vm_extern.h> 64#include <vm/pmap.h> 65#include <vm/vm_map.h> 66#include <vm/uma.h> 67 68MALLOC_DEFINE(M_PGRP, "pgrp", "process group header"); 69MALLOC_DEFINE(M_SESSION, "session", "session header"); 70static MALLOC_DEFINE(M_PROC, "proc", "Proc structures"); 71MALLOC_DEFINE(M_SUBPROC, "subproc", "Proc sub-structures"); 72 73static void doenterpgrp(struct proc *, struct pgrp *); 74static void orphanpg(struct pgrp *pg); 75static void fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp); 76static void fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp); 77static void pgadjustjobc(struct pgrp *pgrp, int entering); 78static void pgdelete(struct pgrp *); 79static int proc_ctor(void *mem, int size, void *arg, int flags); 80static void proc_dtor(void *mem, int size, void *arg); 81static int proc_init(void *mem, int size, int flags); 82static void proc_fini(void *mem, int size); 83 84/* 85 * Other process lists 86 */ 87struct pidhashhead *pidhashtbl; 88u_long pidhash; 89struct pgrphashhead *pgrphashtbl; 90u_long pgrphash; 91struct proclist allproc; 92struct proclist zombproc; 93struct sx allproc_lock; 94struct sx proctree_lock; 95struct mtx ppeers_lock; 96uma_zone_t proc_zone; 97uma_zone_t ithread_zone; 98 99int kstack_pages = KSTACK_PAGES; 100SYSCTL_INT(_kern, OID_AUTO, kstack_pages, CTLFLAG_RD, &kstack_pages, 0, ""); 101 102CTASSERT(sizeof(struct kinfo_proc) == KINFO_PROC_SIZE); 103 104/* 105 * Initialize global process hashing structures. 106 */ 107void 108procinit() 109{ 110 111 sx_init(&allproc_lock, "allproc"); 112 sx_init(&proctree_lock, "proctree"); 113 mtx_init(&ppeers_lock, "p_peers", NULL, MTX_DEF); 114 LIST_INIT(&allproc); 115 LIST_INIT(&zombproc); 116 pidhashtbl = hashinit(maxproc / 4, M_PROC, &pidhash); 117 pgrphashtbl = hashinit(maxproc / 4, M_PROC, &pgrphash); 118 proc_zone = uma_zcreate("PROC", sched_sizeof_proc(), 119 proc_ctor, proc_dtor, proc_init, proc_fini, 120 UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 121 uihashinit(); 122} 123 124/* 125 * Prepare a proc for use. 126 */ 127static int 128proc_ctor(void *mem, int size, void *arg, int flags) 129{ 130 struct proc *p; 131 132 p = (struct proc *)mem; 133 return (0); 134} 135 136/* 137 * Reclaim a proc after use. 138 */ 139static void 140proc_dtor(void *mem, int size, void *arg) 141{ 142 struct proc *p; 143 struct thread *td; 144#if defined(INVARIANTS) && defined(KSE) 145 struct ksegrp *kg; 146#endif 147 148 /* INVARIANTS checks go here */ 149 p = (struct proc *)mem; 150 td = FIRST_THREAD_IN_PROC(p); 151#ifdef INVARIANTS 152 KASSERT((p->p_numthreads == 1), 153 ("bad number of threads in exiting process")); 154#ifdef KSE 155 KASSERT((p->p_numksegrps == 1), ("free proc with > 1 ksegrp")); 156#endif 157 KASSERT((td != NULL), ("proc_dtor: bad thread pointer")); 158#ifdef KSE 159 kg = FIRST_KSEGRP_IN_PROC(p); 160 KASSERT((kg != NULL), ("proc_dtor: bad kg pointer")); 161#endif 162 KASSERT(STAILQ_EMPTY(&p->p_ktr), ("proc_dtor: non-empty p_ktr")); 163#endif 164 165 /* Dispose of an alternate kstack, if it exists. 166 * XXX What if there are more than one thread in the proc? 167 * The first thread in the proc is special and not 168 * freed, so you gotta do this here. 169 */ 170 if (((p->p_flag & P_KTHREAD) != 0) && (td->td_altkstack != 0)) 171 vm_thread_dispose_altkstack(td); 172 if (p->p_ksi != NULL) 173 KASSERT(! KSI_ONQ(p->p_ksi), ("SIGCHLD queue")); 174} 175 176/* 177 * Initialize type-stable parts of a proc (when newly created). 178 */ 179static int 180proc_init(void *mem, int size, int flags) 181{ 182 struct proc *p; 183 struct thread *td; 184#ifdef KSE 185 struct ksegrp *kg; 186#endif 187 188 p = (struct proc *)mem; 189 p->p_sched = (struct p_sched *)&p[1]; 190 td = thread_alloc(); 191#ifdef KSE 192 kg = ksegrp_alloc(); 193#endif 194 bzero(&p->p_mtx, sizeof(struct mtx)); 195 mtx_init(&p->p_mtx, "process lock", NULL, MTX_DEF | MTX_DUPOK); 196 p->p_stats = pstats_alloc(); 197#ifdef KSE 198 proc_linkup(p, kg, td); 199 sched_newproc(p, kg, td); 200#else 201 proc_linkup(p, td); 202#endif 203 return (0); 204} 205 206/* 207 * UMA should ensure that this function is never called. 208 * Freeing a proc structure would violate type stability. 209 */ 210static void 211proc_fini(void *mem, int size) 212{ 213#ifdef notnow 214 struct proc *p; 215 216 p = (struct proc *)mem; 217 pstats_free(p->p_stats); 218#ifdef KSE 219 ksegrp_free(FIRST_KSEGRP_IN_PROC(p)); 220#endif 221 thread_free(FIRST_THREAD_IN_PROC(p)); 222 mtx_destroy(&p->p_mtx); 223 if (p->p_ksi != NULL) 224 ksiginfo_free(p->p_ksi); 225#else 226 panic("proc reclaimed"); 227#endif 228} 229 230/* 231 * Is p an inferior of the current process? 232 */ 233int 234inferior(p) 235 register struct proc *p; 236{ 237 238 sx_assert(&proctree_lock, SX_LOCKED); 239 for (; p != curproc; p = p->p_pptr) 240 if (p->p_pid == 0) 241 return (0); 242 return (1); 243} 244 245/* 246 * Locate a process by number; return only "live" processes -- i.e., neither 247 * zombies nor newly born but incompletely initialized processes. By not 248 * returning processes in the PRS_NEW state, we allow callers to avoid 249 * testing for that condition to avoid dereferencing p_ucred, et al. 250 */ 251struct proc * 252pfind(pid) 253 register pid_t pid; 254{ 255 register struct proc *p; 256 257 sx_slock(&allproc_lock); 258 LIST_FOREACH(p, PIDHASH(pid), p_hash) 259 if (p->p_pid == pid) { 260 if (p->p_state == PRS_NEW) { 261 p = NULL; 262 break; 263 } 264 PROC_LOCK(p); 265 break; 266 } 267 sx_sunlock(&allproc_lock); 268 return (p); 269} 270 271/* 272 * Locate a process group by number. 273 * The caller must hold proctree_lock. 274 */ 275struct pgrp * 276pgfind(pgid) 277 register pid_t pgid; 278{ 279 register struct pgrp *pgrp; 280 281 sx_assert(&proctree_lock, SX_LOCKED); 282 283 LIST_FOREACH(pgrp, PGRPHASH(pgid), pg_hash) { 284 if (pgrp->pg_id == pgid) { 285 PGRP_LOCK(pgrp); 286 return (pgrp); 287 } 288 } 289 return (NULL); 290} 291 292/* 293 * Create a new process group. 294 * pgid must be equal to the pid of p. 295 * Begin a new session if required. 296 */ 297int 298enterpgrp(p, pgid, pgrp, sess) 299 register struct proc *p; 300 pid_t pgid; 301 struct pgrp *pgrp; 302 struct session *sess; 303{ 304 struct pgrp *pgrp2; 305 306 sx_assert(&proctree_lock, SX_XLOCKED); 307 308 KASSERT(pgrp != NULL, ("enterpgrp: pgrp == NULL")); 309 KASSERT(p->p_pid == pgid, 310 ("enterpgrp: new pgrp and pid != pgid")); 311 312 pgrp2 = pgfind(pgid); 313 314 KASSERT(pgrp2 == NULL, 315 ("enterpgrp: pgrp with pgid exists")); 316 KASSERT(!SESS_LEADER(p), 317 ("enterpgrp: session leader attempted setpgrp")); 318 319 mtx_init(&pgrp->pg_mtx, "process group", NULL, MTX_DEF | MTX_DUPOK); 320 321 if (sess != NULL) { 322 /* 323 * new session 324 */ 325 mtx_init(&sess->s_mtx, "session", NULL, MTX_DEF); 326 mtx_lock(&Giant); /* XXX TTY */ 327 PROC_LOCK(p); 328 p->p_flag &= ~P_CONTROLT; 329 PROC_UNLOCK(p); 330 PGRP_LOCK(pgrp); 331 sess->s_leader = p; 332 sess->s_sid = p->p_pid; 333 sess->s_count = 1; 334 sess->s_ttyvp = NULL; 335 sess->s_ttyp = NULL; 336 bcopy(p->p_session->s_login, sess->s_login, 337 sizeof(sess->s_login)); 338 pgrp->pg_session = sess; 339 KASSERT(p == curproc, 340 ("enterpgrp: mksession and p != curproc")); 341 } else { 342 mtx_lock(&Giant); /* XXX TTY */ 343 pgrp->pg_session = p->p_session; 344 SESS_LOCK(pgrp->pg_session); 345 pgrp->pg_session->s_count++; 346 SESS_UNLOCK(pgrp->pg_session); 347 PGRP_LOCK(pgrp); 348 } 349 pgrp->pg_id = pgid; 350 LIST_INIT(&pgrp->pg_members); 351 352 /* 353 * As we have an exclusive lock of proctree_lock, 354 * this should not deadlock. 355 */ 356 LIST_INSERT_HEAD(PGRPHASH(pgid), pgrp, pg_hash); 357 pgrp->pg_jobc = 0; 358 SLIST_INIT(&pgrp->pg_sigiolst); 359 PGRP_UNLOCK(pgrp); 360 mtx_unlock(&Giant); /* XXX TTY */ 361 362 doenterpgrp(p, pgrp); 363 364 return (0); 365} 366 367/* 368 * Move p to an existing process group 369 */ 370int 371enterthispgrp(p, pgrp) 372 register struct proc *p; 373 struct pgrp *pgrp; 374{ 375 376 sx_assert(&proctree_lock, SX_XLOCKED); 377 PROC_LOCK_ASSERT(p, MA_NOTOWNED); 378 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED); 379 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED); 380 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED); 381 KASSERT(pgrp->pg_session == p->p_session, 382 ("%s: pgrp's session %p, p->p_session %p.\n", 383 __func__, 384 pgrp->pg_session, 385 p->p_session)); 386 KASSERT(pgrp != p->p_pgrp, 387 ("%s: p belongs to pgrp.", __func__)); 388 389 doenterpgrp(p, pgrp); 390 391 return (0); 392} 393 394/* 395 * Move p to a process group 396 */ 397static void 398doenterpgrp(p, pgrp) 399 struct proc *p; 400 struct pgrp *pgrp; 401{ 402 struct pgrp *savepgrp; 403 404 sx_assert(&proctree_lock, SX_XLOCKED); 405 PROC_LOCK_ASSERT(p, MA_NOTOWNED); 406 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED); 407 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED); 408 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED); 409 410 savepgrp = p->p_pgrp; 411 412 /* 413 * Adjust eligibility of affected pgrps to participate in job control. 414 * Increment eligibility counts before decrementing, otherwise we 415 * could reach 0 spuriously during the first call. 416 */ 417 fixjobc(p, pgrp, 1); 418 fixjobc(p, p->p_pgrp, 0); 419 420 mtx_lock(&Giant); /* XXX TTY */ 421 PGRP_LOCK(pgrp); 422 PGRP_LOCK(savepgrp); 423 PROC_LOCK(p); 424 LIST_REMOVE(p, p_pglist); 425 p->p_pgrp = pgrp; 426 PROC_UNLOCK(p); 427 LIST_INSERT_HEAD(&pgrp->pg_members, p, p_pglist); 428 PGRP_UNLOCK(savepgrp); 429 PGRP_UNLOCK(pgrp); 430 mtx_unlock(&Giant); /* XXX TTY */ 431 if (LIST_EMPTY(&savepgrp->pg_members)) 432 pgdelete(savepgrp); 433} 434 435/* 436 * remove process from process group 437 */ 438int 439leavepgrp(p) 440 register struct proc *p; 441{ 442 struct pgrp *savepgrp; 443 444 sx_assert(&proctree_lock, SX_XLOCKED); 445 savepgrp = p->p_pgrp; 446 mtx_lock(&Giant); /* XXX TTY */ 447 PGRP_LOCK(savepgrp); 448 PROC_LOCK(p); 449 LIST_REMOVE(p, p_pglist); 450 p->p_pgrp = NULL; 451 PROC_UNLOCK(p); 452 PGRP_UNLOCK(savepgrp); 453 mtx_unlock(&Giant); /* XXX TTY */ 454 if (LIST_EMPTY(&savepgrp->pg_members)) 455 pgdelete(savepgrp); 456 return (0); 457} 458 459/* 460 * delete a process group 461 */ 462static void 463pgdelete(pgrp) 464 register struct pgrp *pgrp; 465{ 466 struct session *savesess; 467 468 sx_assert(&proctree_lock, SX_XLOCKED); 469 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED); 470 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED); 471 472 /* 473 * Reset any sigio structures pointing to us as a result of 474 * F_SETOWN with our pgid. 475 */ 476 funsetownlst(&pgrp->pg_sigiolst); 477 478 mtx_lock(&Giant); /* XXX TTY */ 479 PGRP_LOCK(pgrp); 480 if (pgrp->pg_session->s_ttyp != NULL && 481 pgrp->pg_session->s_ttyp->t_pgrp == pgrp) 482 pgrp->pg_session->s_ttyp->t_pgrp = NULL; 483 LIST_REMOVE(pgrp, pg_hash); 484 savesess = pgrp->pg_session; 485 SESSRELE(savesess); 486 PGRP_UNLOCK(pgrp); 487 mtx_destroy(&pgrp->pg_mtx); 488 FREE(pgrp, M_PGRP); 489 mtx_unlock(&Giant); /* XXX TTY */ 490} 491 492static void 493pgadjustjobc(pgrp, entering) 494 struct pgrp *pgrp; 495 int entering; 496{ 497 498 PGRP_LOCK(pgrp); 499 if (entering) 500 pgrp->pg_jobc++; 501 else { 502 --pgrp->pg_jobc; 503 if (pgrp->pg_jobc == 0) 504 orphanpg(pgrp); 505 } 506 PGRP_UNLOCK(pgrp); 507} 508 509/* 510 * Adjust pgrp jobc counters when specified process changes process group. 511 * We count the number of processes in each process group that "qualify" 512 * the group for terminal job control (those with a parent in a different 513 * process group of the same session). If that count reaches zero, the 514 * process group becomes orphaned. Check both the specified process' 515 * process group and that of its children. 516 * entering == 0 => p is leaving specified group. 517 * entering == 1 => p is entering specified group. 518 */ 519void 520fixjobc(p, pgrp, entering) 521 register struct proc *p; 522 register struct pgrp *pgrp; 523 int entering; 524{ 525 register struct pgrp *hispgrp; 526 register struct session *mysession; 527 528 sx_assert(&proctree_lock, SX_LOCKED); 529 PROC_LOCK_ASSERT(p, MA_NOTOWNED); 530 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED); 531 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED); 532 533 /* 534 * Check p's parent to see whether p qualifies its own process 535 * group; if so, adjust count for p's process group. 536 */ 537 mysession = pgrp->pg_session; 538 if ((hispgrp = p->p_pptr->p_pgrp) != pgrp && 539 hispgrp->pg_session == mysession) 540 pgadjustjobc(pgrp, entering); 541 542 /* 543 * Check this process' children to see whether they qualify 544 * their process groups; if so, adjust counts for children's 545 * process groups. 546 */ 547 LIST_FOREACH(p, &p->p_children, p_sibling) { 548 hispgrp = p->p_pgrp; 549 if (hispgrp == pgrp || 550 hispgrp->pg_session != mysession) 551 continue; 552 PROC_LOCK(p); 553 if (p->p_state == PRS_ZOMBIE) { 554 PROC_UNLOCK(p); 555 continue; 556 } 557 PROC_UNLOCK(p); 558 pgadjustjobc(hispgrp, entering); 559 } 560} 561 562/* 563 * A process group has become orphaned; 564 * if there are any stopped processes in the group, 565 * hang-up all process in that group. 566 */ 567static void 568orphanpg(pg) 569 struct pgrp *pg; 570{ 571 register struct proc *p; 572 573 PGRP_LOCK_ASSERT(pg, MA_OWNED); 574 575 LIST_FOREACH(p, &pg->pg_members, p_pglist) { 576 PROC_LOCK(p); 577 if (P_SHOULDSTOP(p)) { 578 PROC_UNLOCK(p); 579 LIST_FOREACH(p, &pg->pg_members, p_pglist) { 580 PROC_LOCK(p); 581 psignal(p, SIGHUP); 582 psignal(p, SIGCONT); 583 PROC_UNLOCK(p); 584 } 585 return; 586 } 587 PROC_UNLOCK(p); 588 } 589} 590 591void 592sessrele(struct session *s) 593{ 594 int i; 595 596 SESS_LOCK(s); 597 i = --s->s_count; 598 SESS_UNLOCK(s); 599 if (i == 0) { 600 if (s->s_ttyp != NULL) 601 ttyrel(s->s_ttyp); 602 mtx_destroy(&s->s_mtx); 603 FREE(s, M_SESSION); 604 } 605} 606 607#include "opt_ddb.h" 608#ifdef DDB 609#include <ddb/ddb.h> 610 611DB_SHOW_COMMAND(pgrpdump, pgrpdump) 612{ 613 register struct pgrp *pgrp; 614 register struct proc *p; 615 register int i; 616 617 for (i = 0; i <= pgrphash; i++) { 618 if (!LIST_EMPTY(&pgrphashtbl[i])) { 619 printf("\tindx %d\n", i); 620 LIST_FOREACH(pgrp, &pgrphashtbl[i], pg_hash) { 621 printf( 622 "\tpgrp %p, pgid %ld, sess %p, sesscnt %d, mem %p\n", 623 (void *)pgrp, (long)pgrp->pg_id, 624 (void *)pgrp->pg_session, 625 pgrp->pg_session->s_count, 626 (void *)LIST_FIRST(&pgrp->pg_members)); 627 LIST_FOREACH(p, &pgrp->pg_members, p_pglist) { 628 printf("\t\tpid %ld addr %p pgrp %p\n", 629 (long)p->p_pid, (void *)p, 630 (void *)p->p_pgrp); 631 } 632 } 633 } 634 } 635} 636#endif /* DDB */ 637 638/* 639 * Clear kinfo_proc and fill in any information that is common 640 * to all threads in the process. 641 * Must be called with the target process locked. 642 */ 643static void 644fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp) 645{ 646 struct thread *td0; 647 struct tty *tp; 648 struct session *sp; 649 struct ucred *cred; 650 struct sigacts *ps; 651 652 bzero(kp, sizeof(*kp)); 653 654 kp->ki_structsize = sizeof(*kp); 655 kp->ki_paddr = p; 656 PROC_LOCK_ASSERT(p, MA_OWNED); 657 kp->ki_addr =/* p->p_addr; */0; /* XXXKSE */ 658 kp->ki_args = p->p_args; 659 kp->ki_textvp = p->p_textvp; 660#ifdef KTRACE 661 kp->ki_tracep = p->p_tracevp; 662 mtx_lock(&ktrace_mtx); 663 kp->ki_traceflag = p->p_traceflag; 664 mtx_unlock(&ktrace_mtx); 665#endif 666 kp->ki_fd = p->p_fd; 667 kp->ki_vmspace = p->p_vmspace; 668 kp->ki_flag = p->p_flag; 669 cred = p->p_ucred; 670 if (cred) { 671 kp->ki_uid = cred->cr_uid; 672 kp->ki_ruid = cred->cr_ruid; 673 kp->ki_svuid = cred->cr_svuid; 674 /* XXX bde doesn't like KI_NGROUPS */ 675 kp->ki_ngroups = min(cred->cr_ngroups, KI_NGROUPS); 676 bcopy(cred->cr_groups, kp->ki_groups, 677 kp->ki_ngroups * sizeof(gid_t)); 678 kp->ki_rgid = cred->cr_rgid; 679 kp->ki_svgid = cred->cr_svgid; 680 /* If jailed(cred), emulate the old P_JAILED flag. */ 681 if (jailed(cred)) { 682 kp->ki_flag |= P_JAILED; 683 /* If inside a jail, use 0 as a jail ID. */ 684 if (!jailed(curthread->td_ucred)) 685 kp->ki_jid = cred->cr_prison->pr_id; 686 } 687 } 688 ps = p->p_sigacts; 689 if (ps) { 690 mtx_lock(&ps->ps_mtx); 691 kp->ki_sigignore = ps->ps_sigignore; 692 kp->ki_sigcatch = ps->ps_sigcatch; 693 mtx_unlock(&ps->ps_mtx); 694 } 695 mtx_lock_spin(&sched_lock); 696 if (p->p_state != PRS_NEW && 697 p->p_state != PRS_ZOMBIE && 698 p->p_vmspace != NULL) { 699 struct vmspace *vm = p->p_vmspace; 700 701 kp->ki_size = vm->vm_map.size; 702 kp->ki_rssize = vmspace_resident_count(vm); /*XXX*/ 703 FOREACH_THREAD_IN_PROC(p, td0) { 704 if (!TD_IS_SWAPPED(td0)) 705 kp->ki_rssize += td0->td_kstack_pages; 706 if (td0->td_altkstack_obj != NULL) 707 kp->ki_rssize += td0->td_altkstack_pages; 708 } 709 kp->ki_swrss = vm->vm_swrss; 710 kp->ki_tsize = vm->vm_tsize; 711 kp->ki_dsize = vm->vm_dsize; 712 kp->ki_ssize = vm->vm_ssize; 713 } else if (p->p_state == PRS_ZOMBIE) 714 kp->ki_stat = SZOMB; 715 kp->ki_sflag = p->p_sflag; 716 kp->ki_swtime = p->p_swtime; 717 kp->ki_pid = p->p_pid; 718 kp->ki_nice = p->p_nice; 719 kp->ki_runtime = cputick2usec(p->p_rux.rux_runtime); 720 mtx_unlock_spin(&sched_lock); 721 if ((p->p_sflag & PS_INMEM) && p->p_stats != NULL) { 722 kp->ki_start = p->p_stats->p_start; 723 timevaladd(&kp->ki_start, &boottime); 724 kp->ki_rusage = p->p_stats->p_ru; 725 calcru(p, &kp->ki_rusage.ru_utime, &kp->ki_rusage.ru_stime); 726 calccru(p, &kp->ki_childutime, &kp->ki_childstime); 727 728 /* Some callers want child-times in a single value */ 729 kp->ki_childtime = kp->ki_childstime; 730 timevaladd(&kp->ki_childtime, &kp->ki_childutime); 731 } 732 tp = NULL; 733 if (p->p_pgrp) { 734 kp->ki_pgid = p->p_pgrp->pg_id; 735 kp->ki_jobc = p->p_pgrp->pg_jobc; 736 sp = p->p_pgrp->pg_session; 737 738 if (sp != NULL) { 739 kp->ki_sid = sp->s_sid; 740 SESS_LOCK(sp); 741 strlcpy(kp->ki_login, sp->s_login, 742 sizeof(kp->ki_login)); 743 if (sp->s_ttyvp) 744 kp->ki_kiflag |= KI_CTTY; 745 if (SESS_LEADER(p)) 746 kp->ki_kiflag |= KI_SLEADER; 747 tp = sp->s_ttyp; 748 SESS_UNLOCK(sp); 749 } 750 } 751 if ((p->p_flag & P_CONTROLT) && tp != NULL) { 752 kp->ki_tdev = dev2udev(tp->t_dev); 753 kp->ki_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID; 754 if (tp->t_session) 755 kp->ki_tsid = tp->t_session->s_sid; 756 } else 757 kp->ki_tdev = NODEV; 758 if (p->p_comm[0] != '\0') { 759 strlcpy(kp->ki_comm, p->p_comm, sizeof(kp->ki_comm)); 760 /* 761 * Temporarily give the thread a default name of the process 762 * as it's erroneously used in the snmp code. 763 * Remove this when that is fixed. (soon I'm told) 764 */ 765 strlcpy(kp->ki_ocomm, p->p_comm, sizeof(kp->ki_ocomm)); 766 } 767 if (p->p_sysent && p->p_sysent->sv_name != NULL && 768 p->p_sysent->sv_name[0] != '\0') 769 strlcpy(kp->ki_emul, p->p_sysent->sv_name, sizeof(kp->ki_emul)); 770 kp->ki_siglist = p->p_siglist; 771 kp->ki_xstat = p->p_xstat; 772 kp->ki_acflag = p->p_acflag; 773 kp->ki_lock = p->p_lock; 774 if (p->p_pptr) 775 kp->ki_ppid = p->p_pptr->p_pid; 776} 777 778/* 779 * Fill in information that is thread specific. 780 * Must be called with sched_lock locked. 781 */ 782static void 783fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp) 784{ 785#ifdef KSE 786 struct ksegrp *kg; 787#endif 788 struct proc *p; 789 790 p = td->td_proc; 791 792 if (td->td_wmesg != NULL) 793 strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg)); 794 else 795 bzero(kp->ki_wmesg, sizeof(kp->ki_wmesg)); 796 if (td->td_name[0] != '\0') 797 strlcpy(kp->ki_ocomm, td->td_name, sizeof(kp->ki_ocomm)); 798 if (TD_ON_LOCK(td)) { 799 kp->ki_kiflag |= KI_LOCKBLOCK; 800 strlcpy(kp->ki_lockname, td->td_lockname, 801 sizeof(kp->ki_lockname)); 802 } else { 803 kp->ki_kiflag &= ~KI_LOCKBLOCK; 804 bzero(kp->ki_lockname, sizeof(kp->ki_lockname)); 805 } 806 807 if (p->p_state == PRS_NORMAL) { /* XXXKSE very approximate */ 808 if (TD_ON_RUNQ(td) || 809 TD_CAN_RUN(td) || 810 TD_IS_RUNNING(td)) { 811 kp->ki_stat = SRUN; 812 } else if (P_SHOULDSTOP(p)) { 813 kp->ki_stat = SSTOP; 814 } else if (TD_IS_SLEEPING(td)) { 815 kp->ki_stat = SSLEEP; 816 } else if (TD_ON_LOCK(td)) { 817 kp->ki_stat = SLOCK; 818 } else { 819 kp->ki_stat = SWAIT; 820 } 821 } else if (p->p_state == PRS_ZOMBIE) { 822 kp->ki_stat = SZOMB; 823 } else { 824 kp->ki_stat = SIDL; 825 } 826 827#ifdef KSE 828 kg = td->td_ksegrp; 829 830 /* things in the KSE GROUP */ 831 kp->ki_estcpu = kg->kg_estcpu; 832 kp->ki_slptime = kg->kg_slptime; 833 kp->ki_pri.pri_user = kg->kg_user_pri; 834 kp->ki_pri.pri_class = kg->kg_pri_class; 835#endif 836 /* Things in the thread */ 837 kp->ki_wchan = td->td_wchan; 838 kp->ki_pri.pri_level = td->td_priority; 839 kp->ki_pri.pri_native = td->td_base_pri; 840 kp->ki_lastcpu = td->td_lastcpu; 841 kp->ki_oncpu = td->td_oncpu; 842 kp->ki_tdflags = td->td_flags; 843 kp->ki_tid = td->td_tid; 844 kp->ki_numthreads = p->p_numthreads; 845 kp->ki_pcb = td->td_pcb; 846 kp->ki_kstack = (void *)td->td_kstack; 847 kp->ki_pctcpu = sched_pctcpu(td); 848#ifndef KSE 849 kp->ki_estcpu = td->td_estcpu; 850 kp->ki_slptime = td->td_slptime; 851 kp->ki_pri.pri_class = td->td_pri_class; 852 kp->ki_pri.pri_user = td->td_user_pri; 853#endif 854 855 /* We can't get this anymore but ps etc never used it anyway. */ 856 kp->ki_rqindex = 0; 857 858 SIGSETOR(kp->ki_siglist, td->td_siglist); 859 kp->ki_sigmask = td->td_sigmask; 860} 861 862/* 863 * Fill in a kinfo_proc structure for the specified process. 864 * Must be called with the target process locked. 865 */ 866void 867fill_kinfo_proc(struct proc *p, struct kinfo_proc *kp) 868{ 869 870 fill_kinfo_proc_only(p, kp); 871 mtx_lock_spin(&sched_lock); 872 if (FIRST_THREAD_IN_PROC(p) != NULL) 873 fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), kp); 874 mtx_unlock_spin(&sched_lock); 875} 876 877struct pstats * 878pstats_alloc(void) 879{ 880 881 return (malloc(sizeof(struct pstats), M_SUBPROC, M_ZERO|M_WAITOK)); 882} 883 884/* 885 * Copy parts of p_stats; zero the rest of p_stats (statistics). 886 */ 887void 888pstats_fork(struct pstats *src, struct pstats *dst) 889{ 890 891 bzero(&dst->pstat_startzero, 892 __rangeof(struct pstats, pstat_startzero, pstat_endzero)); 893 bcopy(&src->pstat_startcopy, &dst->pstat_startcopy, 894 __rangeof(struct pstats, pstat_startcopy, pstat_endcopy)); 895} 896 897void 898pstats_free(struct pstats *ps) 899{ 900 901 free(ps, M_SUBPROC); 902} 903 904/* 905 * Locate a zombie process by number 906 */ 907struct proc * 908zpfind(pid_t pid) 909{ 910 struct proc *p; 911 912 sx_slock(&allproc_lock); 913 LIST_FOREACH(p, &zombproc, p_list) 914 if (p->p_pid == pid) { 915 PROC_LOCK(p); 916 break; 917 } 918 sx_sunlock(&allproc_lock); 919 return (p); 920} 921 922#define KERN_PROC_ZOMBMASK 0x3 923#define KERN_PROC_NOTHREADS 0x4 924 925/* 926 * Must be called with the process locked and will return with it unlocked. 927 */ 928static int 929sysctl_out_proc(struct proc *p, struct sysctl_req *req, int flags) 930{ 931 struct thread *td; 932 struct kinfo_proc kinfo_proc; 933 int error = 0; 934 struct proc *np; 935 pid_t pid = p->p_pid; 936 937 PROC_LOCK_ASSERT(p, MA_OWNED); 938 939 fill_kinfo_proc_only(p, &kinfo_proc); 940 if (flags & KERN_PROC_NOTHREADS) { 941 mtx_lock_spin(&sched_lock); 942 if (FIRST_THREAD_IN_PROC(p) != NULL) 943 fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), &kinfo_proc); 944 mtx_unlock_spin(&sched_lock); 945 error = SYSCTL_OUT(req, (caddr_t)&kinfo_proc, 946 sizeof(kinfo_proc)); 947 } else { 948 mtx_lock_spin(&sched_lock); 949 if (FIRST_THREAD_IN_PROC(p) != NULL) 950 FOREACH_THREAD_IN_PROC(p, td) { 951 fill_kinfo_thread(td, &kinfo_proc); 952 error = SYSCTL_OUT(req, (caddr_t)&kinfo_proc, 953 sizeof(kinfo_proc)); 954 if (error) 955 break; 956 } 957 else 958 error = SYSCTL_OUT(req, (caddr_t)&kinfo_proc, 959 sizeof(kinfo_proc)); 960 mtx_unlock_spin(&sched_lock); 961 } 962 PROC_UNLOCK(p); 963 if (error) 964 return (error); 965 if (flags & KERN_PROC_ZOMBMASK) 966 np = zpfind(pid); 967 else { 968 if (pid == 0) 969 return (0); 970 np = pfind(pid); 971 } 972 if (np == NULL) 973 return EAGAIN; 974 if (np != p) { 975 PROC_UNLOCK(np); 976 return EAGAIN; 977 } 978 PROC_UNLOCK(np); 979 return (0); 980} 981 982static int 983sysctl_kern_proc(SYSCTL_HANDLER_ARGS) 984{ 985 int *name = (int*) arg1; 986 u_int namelen = arg2; 987 struct proc *p; 988 int flags, doingzomb, oid_number; 989 int error = 0; 990 991 oid_number = oidp->oid_number; 992 if (oid_number != KERN_PROC_ALL && 993 (oid_number & KERN_PROC_INC_THREAD) == 0) 994 flags = KERN_PROC_NOTHREADS; 995 else { 996 flags = 0; 997 oid_number &= ~KERN_PROC_INC_THREAD; 998 } 999 if (oid_number == KERN_PROC_PID) { 1000 if (namelen != 1) 1001 return (EINVAL); 1002 error = sysctl_wire_old_buffer(req, 0); 1003 if (error) 1004 return (error); 1005 p = pfind((pid_t)name[0]); 1006 if (!p) 1007 return (ESRCH); 1008 if ((error = p_cansee(curthread, p))) { 1009 PROC_UNLOCK(p); 1010 return (error); 1011 } 1012 error = sysctl_out_proc(p, req, flags); 1013 return (error); 1014 } 1015 1016 switch (oid_number) { 1017 case KERN_PROC_ALL: 1018 if (namelen != 0) 1019 return (EINVAL); 1020 break; 1021 case KERN_PROC_PROC: 1022 if (namelen != 0 && namelen != 1) 1023 return (EINVAL); 1024 break; 1025 default: 1026 if (namelen != 1) 1027 return (EINVAL); 1028 break; 1029 } 1030 1031 if (!req->oldptr) { 1032 /* overestimate by 5 procs */ 1033 error = SYSCTL_OUT(req, 0, sizeof (struct kinfo_proc) * 5); 1034 if (error) 1035 return (error); 1036 } 1037 error = sysctl_wire_old_buffer(req, 0); 1038 if (error != 0) 1039 return (error); 1040 sx_slock(&allproc_lock); 1041 for (doingzomb=0 ; doingzomb < 2 ; doingzomb++) { 1042 if (!doingzomb) 1043 p = LIST_FIRST(&allproc); 1044 else 1045 p = LIST_FIRST(&zombproc); 1046 for (; p != 0; p = LIST_NEXT(p, p_list)) { 1047 /* 1048 * Skip embryonic processes. 1049 */ 1050 mtx_lock_spin(&sched_lock); 1051 if (p->p_state == PRS_NEW) { 1052 mtx_unlock_spin(&sched_lock); 1053 continue; 1054 } 1055 mtx_unlock_spin(&sched_lock); 1056 PROC_LOCK(p); 1057 KASSERT(p->p_ucred != NULL, 1058 ("process credential is NULL for non-NEW proc")); 1059 /* 1060 * Show a user only appropriate processes. 1061 */ 1062 if (p_cansee(curthread, p)) { 1063 PROC_UNLOCK(p); 1064 continue; 1065 } 1066 /* 1067 * TODO - make more efficient (see notes below). 1068 * do by session. 1069 */ 1070 switch (oid_number) { 1071 1072 case KERN_PROC_GID: 1073 if (p->p_ucred->cr_gid != (gid_t)name[0]) { 1074 PROC_UNLOCK(p); 1075 continue; 1076 } 1077 break; 1078 1079 case KERN_PROC_PGRP: 1080 /* could do this by traversing pgrp */ 1081 if (p->p_pgrp == NULL || 1082 p->p_pgrp->pg_id != (pid_t)name[0]) { 1083 PROC_UNLOCK(p); 1084 continue; 1085 } 1086 break; 1087 1088 case KERN_PROC_RGID: 1089 if (p->p_ucred->cr_rgid != (gid_t)name[0]) { 1090 PROC_UNLOCK(p); 1091 continue; 1092 } 1093 break; 1094 1095 case KERN_PROC_SESSION: 1096 if (p->p_session == NULL || 1097 p->p_session->s_sid != (pid_t)name[0]) { 1098 PROC_UNLOCK(p); 1099 continue; 1100 } 1101 break; 1102 1103 case KERN_PROC_TTY: 1104 if ((p->p_flag & P_CONTROLT) == 0 || 1105 p->p_session == NULL) { 1106 PROC_UNLOCK(p); 1107 continue; 1108 } 1109 SESS_LOCK(p->p_session); 1110 if (p->p_session->s_ttyp == NULL || 1111 dev2udev(p->p_session->s_ttyp->t_dev) != 1112 (dev_t)name[0]) { 1113 SESS_UNLOCK(p->p_session); 1114 PROC_UNLOCK(p); 1115 continue; 1116 } 1117 SESS_UNLOCK(p->p_session); 1118 break; 1119 1120 case KERN_PROC_UID: 1121 if (p->p_ucred->cr_uid != (uid_t)name[0]) { 1122 PROC_UNLOCK(p); 1123 continue; 1124 } 1125 break; 1126 1127 case KERN_PROC_RUID: 1128 if (p->p_ucred->cr_ruid != (uid_t)name[0]) { 1129 PROC_UNLOCK(p); 1130 continue; 1131 } 1132 break; 1133 1134 case KERN_PROC_PROC: 1135 break; 1136 1137 default: 1138 break; 1139 1140 } 1141 1142 error = sysctl_out_proc(p, req, flags | doingzomb); 1143 if (error) { 1144 sx_sunlock(&allproc_lock); 1145 return (error); 1146 } 1147 } 1148 } 1149 sx_sunlock(&allproc_lock); 1150 return (0); 1151} 1152 1153struct pargs * 1154pargs_alloc(int len) 1155{ 1156 struct pargs *pa; 1157 1158 MALLOC(pa, struct pargs *, sizeof(struct pargs) + len, M_PARGS, 1159 M_WAITOK); 1160 refcount_init(&pa->ar_ref, 1); 1161 pa->ar_length = len; 1162 return (pa); 1163} 1164 1165void 1166pargs_free(struct pargs *pa) 1167{ 1168 1169 FREE(pa, M_PARGS); 1170} 1171 1172void 1173pargs_hold(struct pargs *pa) 1174{ 1175 1176 if (pa == NULL) 1177 return; 1178 refcount_acquire(&pa->ar_ref); 1179} 1180 1181void 1182pargs_drop(struct pargs *pa) 1183{ 1184 1185 if (pa == NULL) 1186 return; 1187 if (refcount_release(&pa->ar_ref)) 1188 pargs_free(pa); 1189} 1190 1191/* 1192 * This sysctl allows a process to retrieve the argument list or process 1193 * title for another process without groping around in the address space 1194 * of the other process. It also allow a process to set its own "process 1195 * title to a string of its own choice. 1196 */ 1197static int 1198sysctl_kern_proc_args(SYSCTL_HANDLER_ARGS) 1199{ 1200 int *name = (int*) arg1; 1201 u_int namelen = arg2; 1202 struct pargs *newpa, *pa; 1203 struct proc *p; 1204 int error = 0; 1205 1206 if (namelen != 1) 1207 return (EINVAL); 1208 1209 p = pfind((pid_t)name[0]); 1210 if (!p) 1211 return (ESRCH); 1212 1213 if ((error = p_cansee(curthread, p)) != 0) { 1214 PROC_UNLOCK(p); 1215 return (error); 1216 } 1217 1218 if (req->newptr && curproc != p) { 1219 PROC_UNLOCK(p); 1220 return (EPERM); 1221 } 1222 1223 pa = p->p_args; 1224 pargs_hold(pa); 1225 PROC_UNLOCK(p); 1226 if (req->oldptr != NULL && pa != NULL) 1227 error = SYSCTL_OUT(req, pa->ar_args, pa->ar_length); 1228 pargs_drop(pa); 1229 if (error != 0 || req->newptr == NULL) 1230 return (error); 1231 1232 if (req->newlen + sizeof(struct pargs) > ps_arg_cache_limit) 1233 return (ENOMEM); 1234 newpa = pargs_alloc(req->newlen); 1235 error = SYSCTL_IN(req, newpa->ar_args, req->newlen); 1236 if (error != 0) { 1237 pargs_free(newpa); 1238 return (error); 1239 } 1240 PROC_LOCK(p); 1241 pa = p->p_args; 1242 p->p_args = newpa; 1243 PROC_UNLOCK(p); 1244 pargs_drop(pa); 1245 return (0); 1246} 1247 1248/* 1249 * This sysctl allows a process to retrieve the path of the executable for 1250 * itself or another process. 1251 */ 1252static int 1253sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS) 1254{ 1255 pid_t *pidp = (pid_t *)arg1; 1256 unsigned int arglen = arg2; 1257 struct proc *p; 1258 struct vnode *vp; 1259 char *retbuf, *freebuf; 1260 int error; 1261 1262 if (arglen != 1) 1263 return (EINVAL); 1264 if (*pidp == -1) { /* -1 means this process */ 1265 p = req->td->td_proc; 1266 } else { 1267 p = pfind(*pidp); 1268 if (p == NULL) 1269 return (ESRCH); 1270 if ((error = p_cansee(curthread, p)) != 0) { 1271 PROC_UNLOCK(p); 1272 return (error); 1273 } 1274 } 1275 1276 vp = p->p_textvp; 1277 vref(vp); 1278 if (*pidp != -1) 1279 PROC_UNLOCK(p); 1280 error = vn_fullpath(req->td, vp, &retbuf, &freebuf); 1281 vrele(vp); 1282 if (error) 1283 return (error); 1284 error = SYSCTL_OUT(req, retbuf, strlen(retbuf) + 1); 1285 free(freebuf, M_TEMP); 1286 return (error); 1287} 1288 1289static int 1290sysctl_kern_proc_sv_name(SYSCTL_HANDLER_ARGS) 1291{ 1292 struct proc *p; 1293 char *sv_name; 1294 int *name; 1295 int namelen; 1296 int error; 1297 1298 namelen = arg2; 1299 if (namelen != 1) 1300 return (EINVAL); 1301 1302 name = (int *)arg1; 1303 if ((p = pfind((pid_t)name[0])) == NULL) 1304 return (ESRCH); 1305 if ((error = p_cansee(curthread, p))) { 1306 PROC_UNLOCK(p); 1307 return (error); 1308 } 1309 sv_name = p->p_sysent->sv_name; 1310 PROC_UNLOCK(p); 1311 return (sysctl_handle_string(oidp, sv_name, 0, req)); 1312} 1313 1314 1315static SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD, 0, "Process table"); 1316 1317SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD|CTLTYPE_STRUCT, 1318 0, 0, sysctl_kern_proc, "S,proc", "Return entire process table"); 1319 1320static SYSCTL_NODE(_kern_proc, KERN_PROC_GID, gid, CTLFLAG_RD, 1321 sysctl_kern_proc, "Process table"); 1322 1323static SYSCTL_NODE(_kern_proc, KERN_PROC_PGRP, pgrp, CTLFLAG_RD, 1324 sysctl_kern_proc, "Process table"); 1325 1326static SYSCTL_NODE(_kern_proc, KERN_PROC_RGID, rgid, CTLFLAG_RD, 1327 sysctl_kern_proc, "Process table"); 1328 1329static SYSCTL_NODE(_kern_proc, KERN_PROC_SESSION, sid, CTLFLAG_RD, 1330 sysctl_kern_proc, "Process table"); 1331 1332static SYSCTL_NODE(_kern_proc, KERN_PROC_TTY, tty, CTLFLAG_RD, 1333 sysctl_kern_proc, "Process table"); 1334 1335static SYSCTL_NODE(_kern_proc, KERN_PROC_UID, uid, CTLFLAG_RD, 1336 sysctl_kern_proc, "Process table"); 1337 1338static SYSCTL_NODE(_kern_proc, KERN_PROC_RUID, ruid, CTLFLAG_RD, 1339 sysctl_kern_proc, "Process table"); 1340 1341static SYSCTL_NODE(_kern_proc, KERN_PROC_PID, pid, CTLFLAG_RD, 1342 sysctl_kern_proc, "Process table"); 1343 1344static SYSCTL_NODE(_kern_proc, KERN_PROC_PROC, proc, CTLFLAG_RD, 1345 sysctl_kern_proc, "Return process table, no threads"); 1346 1347static SYSCTL_NODE(_kern_proc, KERN_PROC_ARGS, args, 1348 CTLFLAG_RW | CTLFLAG_ANYBODY, 1349 sysctl_kern_proc_args, "Process argument list"); 1350 1351static SYSCTL_NODE(_kern_proc, KERN_PROC_PATHNAME, pathname, CTLFLAG_RD, 1352 sysctl_kern_proc_pathname, "Process executable path"); 1353 1354static SYSCTL_NODE(_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD, 1355 sysctl_kern_proc_sv_name, "Process syscall vector name (ABI type)"); 1356 1357static SYSCTL_NODE(_kern_proc, (KERN_PROC_GID | KERN_PROC_INC_THREAD), gid_td, 1358 CTLFLAG_RD, sysctl_kern_proc, "Process table"); 1359 1360static SYSCTL_NODE(_kern_proc, (KERN_PROC_PGRP | KERN_PROC_INC_THREAD), pgrp_td, 1361 CTLFLAG_RD, sysctl_kern_proc, "Process table"); 1362 1363static SYSCTL_NODE(_kern_proc, (KERN_PROC_RGID | KERN_PROC_INC_THREAD), rgid_td, 1364 CTLFLAG_RD, sysctl_kern_proc, "Process table"); 1365 1366static SYSCTL_NODE(_kern_proc, (KERN_PROC_SESSION | KERN_PROC_INC_THREAD), 1367 sid_td, CTLFLAG_RD, sysctl_kern_proc, "Process table"); 1368 1369static SYSCTL_NODE(_kern_proc, (KERN_PROC_TTY | KERN_PROC_INC_THREAD), tty_td, 1370 CTLFLAG_RD, sysctl_kern_proc, "Process table"); 1371 1372static SYSCTL_NODE(_kern_proc, (KERN_PROC_UID | KERN_PROC_INC_THREAD), uid_td, 1373 CTLFLAG_RD, sysctl_kern_proc, "Process table"); 1374 1375static SYSCTL_NODE(_kern_proc, (KERN_PROC_RUID | KERN_PROC_INC_THREAD), ruid_td, 1376 CTLFLAG_RD, sysctl_kern_proc, "Process table"); 1377 1378static SYSCTL_NODE(_kern_proc, (KERN_PROC_PID | KERN_PROC_INC_THREAD), pid_td, 1379 CTLFLAG_RD, sysctl_kern_proc, "Process table"); 1380 1381static SYSCTL_NODE(_kern_proc, (KERN_PROC_PROC | KERN_PROC_INC_THREAD), proc_td, 1382 CTLFLAG_RD, sysctl_kern_proc, "Return process table, no threads"); 1383